linux-kernel - Re: [PATCH] init_task: Include <linux/rbtree.h> in the right file

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Date:   Sun, 4 Dec 2022 14:55:11 +0100
From:   Marco Elver <elver@...gle.com>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>
Cc:     paulmck@...nel.org, mark.rutland@....com,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Ingo Molnar <mingo@...hat.com>, Joe Perches <joe@...ches.com>
Subject: Re: [PATCH] init_task: Include <linux/rbtree.h> in the right file

[+Cc Ingo, who had been working on lots of include improvements.]

The Cc list is odd -- it appears that get_maintainers.pl is broken on
init_task.c:

	$> ./scripts/get_maintainer.pl init/init_task.c
	Mark Rutland <mark.rutland@....com> (commit_signer:1/1=100%)
	"Paul E. McKenney" <paulmck@...nel.org> (commit_signer:1/1=100%)
	Marco Elver <elver@...gle.com> (commit_signer:1/1=100%,authored:1/1=100%,removed_lines:5/5=100%)
	linux-kernel@...r.kernel.org (open list)

What's going on here?

On Sun, Dec 04, 2022 at 12:39PM +0100, Christophe JAILLET wrote:
> There is no need to include <linux/rbtree.h> in init_task.h.
> Move it to the right place, in kernel/cred.c which uses RB_ROOT_CACHED.
> 
> This is a follow-up of commit 4e7e3adbba52 ("Expand various INIT_* macros
> and remove") which moved things from init_task.h to init_task.c
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
> ---
> Let see if build-bots agree with me!
> 
> This patch depends on [1] and [2].
> All these patches are related to init_task.h simplification.
> 
> They are unrelated and can be applied separately, but as they modify more
> or less the same place in the same file, there may be some merge conflict.
> 
> [1]: https://lore.kernel.org/all/1a3d5bd51b7807471a913f8fa621e5a4ecd08e6a.1670100520.git.christophe.jaillet@wanadoo.fr/
> [2]: https://lore.kernel.org/all/94c8f2123a8833b61d84a662ec35f9c070cdf4dd.1670147823.git.christophe.jaillet@wanadoo.fr/
> ---
>  include/linux/init_task.h | 1 -
>  init/init_task.c          | 1 +
>  2 files changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/include/linux/init_task.h b/include/linux/init_task.h
> index 6d2c4ea4c97a..e18a6c6f6fd9 100644
> --- a/include/linux/init_task.h
> +++ b/include/linux/init_task.h
> @@ -9,7 +9,6 @@
>  #include <linux/ipc.h>
>  #include <linux/user_namespace.h>
>  #include <linux/seqlock.h>
> -#include <linux/rbtree.h>
>  #include <linux/refcount.h>
>  #include <linux/sched/autogroup.h>
>  #include <net/net_namespace.h>
> diff --git a/init/init_task.c b/init/init_task.c
> index ff6c4b9bfe6b..2392c0a67fb7 100644
> --- a/init/init_task.c
> +++ b/init/init_task.c
> @@ -2,6 +2,7 @@
>  #include <linux/init_task.h>
>  #include <linux/export.h>
>  #include <linux/mqueue.h>
> +#include <linux/rbtree.h>
>  #include <linux/sched.h>
>  #include <linux/sched/sysctl.h>
>  #include <linux/sched/rt.h>
> -- 
> 2.34.1
>